CN104247262A - High voltage dc circuit breaker apparatus - Google Patents
High voltage dc circuit breaker apparatus Download PDFInfo
- Publication number
- CN104247262A CN104247262A CN201280070999.6A CN201280070999A CN104247262A CN 104247262 A CN104247262 A CN 104247262A CN 201280070999 A CN201280070999 A CN 201280070999A CN 104247262 A CN104247262 A CN 104247262A
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- conduction path
- terminal
- breaker apparatus
- thyristor
- module
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/541—Contacts shunted by semiconductor devices
- H01H9/542—Contacts shunted by static switch means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
- H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
- H02H7/1227—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to abnormalities in the output circuit, e.g. short circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
- H03K17/08116—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit in composite switches
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A circuit breaker apparatus for use in high voltage direct current (HVDC) power transmission, the circuit breaker apparatus comprising one module (40) or a plurality of series-connected modules (40), the or each module (40) including: first, second, third and fourth conduction paths (42,44,46,48) and first and second terminals (50,52) for connection to an electrical network (54,56), each conduction path (42,44,46,48) extending between the first and second terminals (50,52), the first conduction path (42) including a mechanical switching element (58), the second conduction path (44) including at least one semiconductor switching element (66), the third conduction path (46) including a snubber circuit having an energy storage device (70) and the fourth conduction path (48) including a resistive element (74).
Description
Technical field
The present invention relates to the breaker apparatus be used in high voltage direct current (HVDC) transmission of electricity.
Background technology
In electric power transmission network, usually will exchange (AC) electricity convert that direct current (DC) is electric to be transmitted for via overhead route and/or submarine cable to.This conversion removes the needs compensated the AC capacity load effect applied by transmission line or cable, thereby reduces the transmission line of every km and/or the cost of cable.Therefore, when needs long distance powedr transmission, it is worthwhile for being transformed into DC from AC.
Needing wherein to be interconnected in the electric power transmission network carrying out in the AC network of work in different frequency place also utilizes AC electricity to the conversion of DC electricity.In this type of electric power transmission network any, each interface between AC is electric and DC is electric needs transducer to realize required conversion.
HVDC easily suffers DC side fault or can occur having at the two ends of DC power transmission line or cable other abnormal work situation of low-impedance short circuit.These faults due to insulation damage or break, be struck by lightning, other accidental bridging between conductor that the movement of conductor or foreign matter cause etc. and may occurring.
The low-impedance existence at DC power transmission line or cable two ends can be unfavorable for HVDC converter.Sometimes, the intrinsic design of transducer means that transducer under these conditions can not current limliting, causes the development of the high fault current of the rated current exceeding HVDC converter.This high fault current not only damages the assembly of HVDC converter, and causes HVDC converter off-line a period of time.This causes the continuous increase of the R and M cost of the electronic equipment hardware damaged, and is not easy to the end user relying on electronic device works.Therefore, be important once detecting that high fault current can interrupt this high fault current.
The conventional method (transducer controls not limit this fault current by other means any whereby) making HVDC converter avoid DC side fault will hanker after AC side circuit breaker, thus removes the electric current supply by HVDC converter, fault being fed to DC side.This is because there is not available HVDC circuit breaker design at present.And nearly all HVDC scheme is all adopt the point-to-point scheme being connected to two HVDC converter of DC side at present, a HVDC converter is as the power supply with electric power calibration capability whereby, and another HVDC converter is as the electrical load with power inverter ability.Therefore, because the existence of fault in point-to-point scheme needs to interrupt flow of power to allow to remove this fault, so it is acceptable for hankering after AC side circuit breaker.
Needed for the reproducible generation form of local position distribution, the HVDC power transmission network that the electrical network that one class is new connects is being considered to move a large amount of electric power for long distance now, to increase the ability of the existing AC transmission network having intelligent electrical network intelligence and can support the feature of the easy demand of modern e-trade.
The HVDC power transmission network that electrical network connects needs the multiple terminals of HVDC converter to interconnect, and the HVDC converter of three or more of concurrent working can be used whereby to come at DC side Change Power.Each HVDC converter is used as source or converges with the electric power of the whole power balance being input to output maintaining network clearing house needs simultaneously.Before the less desirable power consumption throughout whole network occurs, need fault in promptly isolation network and with remaining network detach.In addition, the fault current of several transducers from the source of being used as can merge, and to form the fault current of combination, manages if inappropriate, this extensive damage of electronic equipment that will cause whole network.
When electric current reaches current zero, perform the current interruptions in conventional circuit breaker, appreciably to reduce the difficulty of interrupt task.Therefore, in traditional circuit device, do not occur within the limiting time for interruptive current if there is current zero, then damage the risk of current interrupt device.Therefore, different from the AC electric current that current zero occurs naturally, DC electric current can not reach current zero naturally, is difficult to perform DC current interruptions so intrinsic.
Traditional AC circuit breaker can be used to perform DC current interruptions by the current zero applying compulsory current zero or manual creation.A kind of method of DC current interruptions relates to the two ends parallel join auxiliary circuit at traditional AC circuit breaker, this auxiliary circuit comprises: the combination of capacitor or capacitor and inductor, and be arranged to the oscillating current being created in and DC load current superposes, thus create current zero.This layout has the response time of a few tens of milliseconds usually, the requirement of this HVDC electrical network of response time within the scope of several milliseconds of not satisfying the demand.
EP 0867998B1 discloses conventional solid-state DC circuit breaker, and it is stacking that this circuit breaker comprises the series IGBT parallel with metal oxide arrester.But the program reaches the above-mentioned response time mentioned is subject to high steady state power loss.
Summary of the invention
According to an aspect of the present invention, provide one be used in high voltage direct current (HVDC) transmission of electricity in breaker apparatus, this breaker apparatus comprises a module or multiple serial module structure;
Described module or each module comprise: the first conduction path, the second conduction path, the 3rd conduction path and the 4th conduction path; And being connected to first terminal and second terminal of electric network, each conduction path extends between first terminal and the second terminal.
First conduction path comprises mechanical switching element, flows through the first conduction path optionally to allow electric current in the first mode of operation or to be commutated to the second conduction path from the first conduction path by electric current in the second mode of operation between first terminal and the second terminal;
Second conduction path comprises at least one thyristor, between first terminal and the second terminal, flow through the second conduction path optionally to allow electric current in the second mode of operation or electric current to be commutated to the 3rd conduction path from the second conduction path, wherein, the arc voltage of mechanical switching element exceedes conducting state (on-sate) voltage at one or more thyristor two ends;
3rd conduction path comprises the buffer circuit with energy storing device, to control the rate of change of the voltage at mechanical switching element two ends in the second mode of operation and to revolt the electric current flowed between first terminal and the second terminal;
4th conduction path comprises resistive element, to absorb in the second mode of operation and the energy that dissipates, and transfer from the charging current of first terminal and the second terminal away from energy storing device to limit the maximum voltage at first terminal and the second terminal two ends.
In use, breaker apparatus can be connected with DC series network, and can be connected in series with traditional AC circuit breaker or cutter.Breaker apparatus being connected to DC network causes electric current in DC network, flow through the first conduction path of described module or each module during normal transmission.When compared with the switch of equal specified based semiconductor, the use of mechanical switching element such as vacuum interrupter in the first conduction path decreases conduction loss during the normal running of DC network.
In situation about breaking down in the DC network causing high fault current, connect described thyristor or each thyristor and open mechanical switching element, so that electric current to be commutated to the second conduction path from the first conduction path.This causes the formation of the electric arc between the contact element of mechanical switching element.The existence of the arc voltage at the contact element two ends of mechanical switching element causes electric current to commutate the second conduction path from the first conduction path.This causes arc extinction then, and minimizes the wearing and tearing of contact element thus, and this extends the life-span of mechanical switching element.
The difference impact of the arc voltage of mechanical switching element and the on-state voltage at one or more thyristor two ends is from the first conduction path to the speed commutated of the electric current of the second conduction path.
The mechanical switching element with fast current copped wave and high arc voltage characteristic uses ideally together with the thyristor be connected in parallel or the thyristor set that is connected in parallel, to be commutated to blocking state from conducting state by mechanical switching element.This is because the electric arc between contact element within mechanical switching element promptly commutates when not consuming a lot of energy.By contrast, when the switch of based semiconductor is in conducted state, the use of switch in (carrying together with load current can being fallen with required low on-state voltage) first conduction path of based semiconductor has larger stored charge by semiconductor junction place.When electric current commutates the second conduction path from the first conduction path, this stored charge must be dissipated to be returned in blocking state by equipment subsequently.This needs other assembly of the described thyristor in the second conduction path or each thyristor and breaker apparatus to have larger speed, to process extra dissipation obligation, and therefore make equipment less economical in size, weight and cost.
Mechanical switching element provides lower conduct electricity pressure drop with low cost and complexity, and be thus suitable for when do not need to interrupt or Limited Current function time carry electric current from DC network always.This not only provides the configuration to one's profit of the power loss significantly reducing breaker apparatus, and decreases the running cost of factory's cooling requirement and breaker apparatus, therefore causes economic equipment de-sign.
Mechanical switching element must be rated the described thyristor of coupling or each thyristor availability factor in the module.The rated voltage of whole DC network is divided into again may be counted as the individual permission of each rated voltage for the multiple serial module structure freely available mechanical switching element of intermediate voltage and the use of semiconductor of hundreds of.And mechanical switching element only need the short range of its contact element from, this allow in order to realize with low driving force reliable current interrupt required for fast operating.Therefore, this causes reality and breaker apparatus to one's profit.
After electric arc between the contact element extinguishing mechanical switching element, connect described thyristor or each thyristor, to be commutated to the 3rd conduction path from the second conduction path by electric current.Open mechanical switching element and change its proof voltage ability, which increase the interval in the gap between contact element, until reach final contact interval distance.The flowing of electric current in the 3rd conduction path makes the energy storing device such as capacitor charging of buffer circuit, and the climbing speed of the voltage that mechanical switching element two ends apply is tied to the value lower than the climbing speed of the proof voltage ability of mechanical switching element by this.When contact is moved, this allows the voltage applied at mechanical switching element two ends can remain on the value lower than the proof voltage ability of mechanical switching element.
Do not have in the situation of buffer circuit in described module or each module, before can disconnecting described thyristor or each thyristor, mechanical switching element needs its contact element to be completely separated, to be commutated to the 3rd conduction path from the second conduction path by electric current.This adversely can reduce the service speed of breaker apparatus.Mechanical switching element contact element completely separately after, disconnect described thyristor or each thyristor may prevent the successful interruption of electric current and damage mechanical switching element.
When the described thyristor disconnected in described module or each module or each thyristor, buffer circuit also will remove any voltge surge occurred from circuit inductance, otherwise this will damage described thyristor or each thyristor.
Therefore, comprise in described module or each module service speed and the reliability that buffer circuit improves breaker apparatus.
Energy storing device to be charged the formation of resistance voltage of the voltage on the DC network also causing being formed the multiple serial module structure two ends in described module or universal time coordinated together, and DC mesh current can be driven into limit value.Simultaneously, even when the electric current from DC network is still present between first terminal and the second terminal, the voltage that each module two ends apply also is fixed within safety level by resistive element away from buffer circuit by transfer current by the resistive element of the 4th conduction path.Therefore, breaker apparatus must be designed to comprise to be had sufficient the enough of voltage amplitude of collecting and is connected in series module, not only to absorb and to dissipate the voltge surge produced by the inductive energy stored in DC network, and the standard rated voltage of process DC network, so that by current drives to zero.
If electric current is driven to zero, then this equipment is equivalent to circuit breaker.For the sake of security, the second traditional AC circuit breaker or cutter with devices in series can be switched to open mode, to complete open circuit process by arranging isolation this moment.Otherwise if resistance voltage driven current is to nonzero value, then equipment is equivalent to flow restricter.In this case, traditional AC circuit breaker can remain closed or can first be omitted.
After removing the fault in DC network, breaker apparatus can return to its normal manipulation mode by closed mechanical switching element.Resistive element makes energy storing device discharge into its steady-state voltage levels, can again close safely to allow mechanical switching element.Otherwise, if make energy storing device be charged to level substantially on its steady-state voltage levels always, then may damage the ability that equipment performs current interruption process subsequently.This is because: the about stepping of the voltage due to mechanical switching element two ends is increased to the voltage at energy storing device two ends, so the high climbing speed of voltage can be applied in mechanical switching element two ends during current interruption process subsequently.
Therefore, the described module in breaker apparatus or the configuration of each module cause defining the described module of separate unit or each module, can optionally voltage drop be applied in DC network.The use of multiple serial module structure allows breaker apparatus to interrupt or limits the electric current in DC network.The quantity that can change provided module is with applicable low-voltage, middle voltage, the application of high voltage electricity, but this quantity is normally specified, thus the use of all modules in a given application drive current to zero.
In order to current limliting in DC network, can operating breaker equipment thus only some modules resistance voltage is provided, with drive current to nonzero value, and remain module and be left in bypass mode, and do not provide resistance voltage thus.
Current-limiting operation can be realized by using the embodiment of breaker apparatus, wherein, breaker apparatus comprises multiple serial module structure, wherein, in use the described thyristor of one or more module or each thyristor can switch, in the second mode of operation electric current to be commutated to the 3rd conduction path from the second conduction path, simultaneously the described thyristor of described or other module each or each thyristor can switch, between first terminal and the second terminal, the second conduction path is flow through to allow electric current.The modular arrangement of breaker apparatus to allow during current-limit mode with the duty factor of collection module under the pattern successively of the second conduction path, the 3rd conduction path, the 4th conduction path to make full use of the availability factor of equipment.This also allow adjustment resistance voltage, with by current drives to any nonzero value being less than primary fault current level.
Preferably, described thyristor or each thyristor optionally allow electric current to flow through the second conduction path in the first mode of operation between first terminal and the second terminal.
Breaker apparatus may be needed after interruption or Limited Current within the predetermined time, to return to its normal manipulation mode.As described above, if make energy storing device charge on the steady-state voltage levels of this energy storing device during again closing mechanical switching element always, then the ability that equipment performs current interruption process subsequently may be damaged.Described thyristor or each thyristor can be operating as, and allow electric current to flow through the second conduction path at any time between first terminal and the second terminal.If also do not remove fault, then described thyristor or each thyristor disconnect, and very flow fast through breaker apparatus to stop electric current.
When still making energy storing device charge on the steady-state voltage levels of this energy storing device when removing fault always, described thyristor or each thyristor can be switched at any time, to allow the second conduction path conduction current during the normal running of DC network, until the voltage at energy storing device two ends has failed to its steady-state voltage levels.During this period, although power loss is higher than normally, this power loss due to time period of being presented in higher losses shorter and remain acceptable.Now, mechanical switching element is closed, with disconnection described thyristor or each thyristor with enabling before, allow electric current between first terminal and the second terminal, flow through the first conduction path.
In an embodiment of the present invention, mechanical switching element can comprise be positioned within dielectric can indentation engagement contact element.This mechanical switching element can be such as vacuum interrupter.
Dielectric selection affects the proof voltage ability of mechanical switching element.Dielectric can be high-performance electric medium, and it can be but be not limited to oil, vacuum or sulphur hexafluoride.To make between the contact element of mechanical switching element closely-spaced can cause high-isolating for the dielectric use of high-performance.Owing to only needing contact element to advance short distance to realize required interval, so this promotes the rapid switching of mechanical switching element then.Short interval between contact element decreases the driving-energy of operating machine required for switch element, because this reducing the size of breaker apparatus, cost and weight.
In yet another embodiment, described thyristor or each thyristor can be or can comprise insulated gate bipolar transistor, grid disconnection thyristor, grid rectification change transistor, integrated form grid rectification change transistor or the controlled thyristor of MOS.Described thyristor or each thyristor can be in parallel with anti-paralleled diode.
Described thyristor or each thyristor can by but be not limited to silicon or semiconductor material with wide forbidden band, such as carborundum, diamond or gallium nitride are made.
The required rated current of described thyristor or each thyristor can be change for interruptive current or for Limited Current according to described module or each module, this is because described thyristor or each thyristor only need can be switched in circuit once in open circuit event at any time with about millisecond duration.But, when the module of correspondence is used for Limited Current, described thyristor or each thyristor is now needed to be switched to continuously in circuit, or need by the module of correspondence tens or hundreds of millisecond duty factor on cut out bypass, thus need the higher of described thyristor or each thyristor and continuous print rated power.
Resistive element can comprise at least one linear resistor and/or at least one nonlinear resistor such as metal oxide varistor.
Preferably, the 4th conduction path also comprises the auxiliary switch element being connected to resistive element, and this auxiliary switch element can be used for revising the voltage drop at electric current or the resistive element two ends flowing through resistive element two ends.Auxiliary switch element can be such as solid-state switch (such as thyristor or IGBT) or mechanical switch (such as vacuum interrupter or high-voltage relay).
The use of auxiliary switch element allows resistive element optionally cut or cut out circuit, to revise the voltage drop at electric current or the resistive element two ends flowing through resistive element two ends, thus is controlled absorption or the dissipation of energy by resistive element.When resistive element comprises multiple resistive element parts, auxiliary switch element and multiple resistive element parts can be arranged to: when revising the voltage drop at electric current or the resistive element two ends flowing through resistive element two ends, auxiliary switch element can by partial ohmic element assembly but not whole resistive element cuts out circuit, and other resistive element parts retain in circuit.
The configuration of described module or each module can be depended on the demand of breaker apparatus and change.
In an embodiment of the present invention, the first conduction path, the second conduction path, the 3rd conduction path, the 4th conduction path can be in parallel between first terminal and the second terminal.
In other embodiments of the invention, energy storing device and resistive element can be in parallel, and buffer circuit can also comprise diode, and it is connected to the parallel combination of energy storing device and resistive element.
The use of diode in buffer circuit eliminates and made energy storing device discharge into the needs of zero volt completely before the described thyristor of connection or each thyristor and/or closed mechanical switching element.Otherwise diode may cause from the omission buffer circuit the big current that pulls out from capacitor, this may damage described thyristor or each thyristor and/or described mechanical switching element.
In addition, the use of diode in buffer circuit allows energy storing device to maintain minimum voltage level and makes this energy storing device be used as the locally supplied power source of energy source for using in described or each module thus, thus powers to the equipment such as the IGBT of such as mechanical switching element and actuator.
On the other hand, buffer circuit can omit diode, to reduce the size of breaker apparatus, weight and cost.
Utilize multiple serial module structure use breaker apparatus embodiment in, one or more module can be reversely connected to one or more other module, with double-direction control and/or turn-off current.
In yet another embodiment of the present invention, the second conduction path can comprise two thyristors; And buffer circuit can comprise energy storing device and two diodes, each thyristor is connected to corresponding in the diode in buffer circuit, with the set of current limit control element, current controling element set is in parallel with energy storing device in the mode of full-bridge arrangement.
The use of one or more module configured by this way causes breaker apparatus to have bidirectional current interruption and limitation capability.
Preferably, the 4th conduction path can be in parallel with the energy storing device of buffer circuit, or in parallel with the first conduction path, the second conduction path and/or the 3rd conduction path.
Circuit breaker can also comprise to the power supply of one or more assembly power supply of breaker apparatus.Such as, power supply can for or can comprise for receive and the transformer of rectification ripple current, optical drive power supply, the turbogenerator, fuel cell, flow battery or the thermoelectric generator that are coupled with alternating current generator or DC generator.
Accompanying drawing explanation
With reference now to accompanying drawing, by non-limiting example, the preferred embodiments of the present invention are described, in the accompanying drawings:
Fig. 1 illustrates the module of a part for formation breaker apparatus according to a first embodiment of the present invention with exemplary form;
The cathode protection of arc period formation is carried out between the contact element that Fig. 2 illustrates disconnected device in a vacuum;
Fig. 3 illustrates the change in voltage of the relative length across corresponding cathode protection and arc-plasma;
Fig. 4 a to Fig. 4 f illustrates for interrupting or the operation of module of Fig. 1 of Limited Current;
Fig. 5 illustrates the change of both the voltage and currents in the conduction path of the module of Fig. 1;
Fig. 6 illustrates the module of a part for formation breaker apparatus according to a second embodiment of the present invention with exemplary form;
Fig. 7 illustrates the module of a part for formation breaker apparatus according to a third embodiment of the present invention with exemplary form;
Fig. 8 illustrates the module of a part for formation breaker apparatus according to a fourth embodiment of the present invention with exemplary form;
Fig. 9 illustrate according to a fifth embodiment of the present invention when breaker apparatus comprises the power supply of receiving transformer form by ripple current being injected into the circuit of powering to breaker apparatus in the load current of DC network; And
Figure 10 illustrates the paltie effect thermoelectric device of the part for the formation of the thermoelectric generator of powering to breaker apparatus.
Embodiment
Fig. 1 shows the module 40 of a part for formation breaker apparatus according to a first embodiment of the present invention.
First breaker apparatus comprises multiple serial module structure 40.Each module 40 comprises: the first conduction path 42, second conduction path 44, the 3rd conduction path 46 and the 4th conduction path 48; And first terminal 50 and the second terminal 52.
In use, the first terminal 50 of each module 40 and the second terminal 52 are connected with DC network 54 and AC circuit breaker 56.
First conduction path 42 comprises with the mechanical switching element of vacuum interrupter 58 form, and wherein this vacuum interrupter 58 can engage with the contact element 59 being arranged in vacuum in indentation, as shown in Figure 2.Vacuum interrupter 58 have be in 20V to 40V scope within deterministic arc voltage.It should be appreciated that vacuum interrupter 58 preferably has fast current copped wave and high arc voltage characteristic.
The arc voltage of vacuum interrupter 58 is determined by the geometry of the contact element of this vacuum interrupter and material.Electric arc is formed in a vacuum at the metallic vapour of the surface of contact element 59 gasification.Owing to only having the enough high boiling that could maintain metallic vapour of local heat effect, so the current convergence flowing through vacuum interrupter 58 is in narrow cathode protection, as shown in Figure 2.Mean that nearly all arc voltage 60 is formed across cathode protection length 62 at the high current density at each cathode protection 61 place, wherein minimum voltage is formed across the length 64 of arc-plasma 63, as shown in Figure 3.
Fast current copped wave in vacuum interrupter 58 results from due in heat trnasfer to the contact material of around bulk and the quick cooling of the cathode protection caused.When the thermal effect of electric current become enough low with the boiling of removing metallic vapour time, electric arc will promptly be extinguished, and if contact gap is enough large, then electric arc can not restart.
Second conduction path 44 comprises with the thyristor of insulated gate bipolar transistor (IGBT) 66 form, and wherein, it is in parallel with anti-paralleled diode 68.The on-state voltage that this IGBT 66 has the rated voltage of 3.3KV or 4.5KV and the about 3.0V when rated current usually falls.
3rd conduction path 46 comprises buffer circuit, and this buffer circuit comprises the capacitor 70 and diode 72 that are arranged to limited capacitor-diode disconnection buffer arrangement.
First conduction path 42, second conduction path 44 and the 3rd conduction path 46 are in parallel between first terminal 50 and the second terminal 52.
4th conduction path 48 has with the resistive element of metal oxide varistor 74 form, and it is in parallel with the capacitor 70 of buffer circuit.Metal oxide varistor 74 is non-linear rheostat, and it has high resistance when low-voltage and has low resistance when high voltage.
In other embodiments of the invention (not shown), should it is envisaged that: metal oxide varistor can be replaced by multiple metal oxide varistor, at least one other nonlinear resistor, at least one linear resistor or its every combination.
First breaker apparatus also comprises: the thyristor 76 in parallel with IGBT 66.Thyristor 76 can oppositely connect to protect anti-paralleled diode 68 not suffer overcurrent and damage during transient fault electric current.This allows the first breaker apparatus in use can be connected to DC network, and this DC network has the network structure of the fault current comprising load and opposed polarity.
In other embodiments, should be envisioned for: if electric current needs to be controlled in both direction and/or interrupt, then one or more extra module can oppositely and existing multiple block coupled in series, to control and/or to interrupt rightabout electric current.
In other embodiments, should be envisioned for: thyristor 76 can be omitted from each module 40.In these embodiments, diode 68 can be protected not suffer overcurrent by closed mechanical switching element 58, to be commutated to the first conduction path 42 from the second conduction path 44 by transient fault electric current.
With reference to figure 4a to Fig. 4 f and Fig. 5, the operation for each module 40 of interrupting the breaker apparatus in Fig. 1 of the electric current in DC network 54 is as described below.
Fig. 5 illustrates the change of electric current in the conduction path 42,44,46,48 in the module 40 of current interruption process period Fig. 1 and voltage.
As shown in fig. 4 a, during the normal operating situation of DC network 54, vacuum interrupter 58 is closed with the first conduction path 42 allowing electric current 78a to flow through DC network 54, AC circuit breaker 56 and module 40.In this stage, electric current 78a does not flow through the second conduction path 44, the 3rd conduction path 46 and the 4th conduction path 48, and the two ends of disconnected device 58 or IGBT 66 do not exist significant voltage drop 82 in a vacuum.
Fault in DC network 54 or other abnormal operation situation may cause the high fault current flowing through DC network 54.
As shown in Figure 4 b, in response to the event 80a of the high fault current in DC network 54, IGBT 66 is switched to conducting state 80b, this causes electric current 78a to start to commutate the second conduction path 44 from the first conduction path 42.This causes electric current 78b to flow in the second conduction path 44.The trip coil of vacuum interrupter 58 is activated this moment, carries out initialization with the interval 80c of the contact element to vacuum interrupter, the formation of electric arc between this contact element causing interval.The existence of the arc voltage at contact element two ends causes electric current 78a to commutate completely the second conduction path 44 from the first conduction path 42, as illustrated in fig. 4 c, and thus extinguish arcs 80d completely.
The arc voltage of the vacuum interrupter 58 higher than the on-state voltage of IGBT 66 causes electric current 78a to commutate rapidly 84 usually from the first conduction path 42 to the second conduction path 44 within the time of 1 millisecond.
Speed di/dt when electric current 78a commutates the second conduction path 44 from the first conduction path 42 is calculated as follows:
Wherein, V
arcfor the arc voltage at the contact element two ends of vacuum interrupter 58;
V
iGBTfor the on-state voltage of IGBT 66; And
L
strayfor the stray inductance of conductor loop formed by vacuum interrupter 58 and IGBT 66.
Such as, if V
arcfor 33V, V
iGBTfor 3V, and L
strayfor 50nH, then speed when electric current 78a commutates the second conduction path 44 from the first conduction path 42 is every microsecond 600A.
Fig. 4 d illustrates and passes in time and flow through the change of the electric current of the first conduction path 42 and the second conduction path 44.Show: in DC network 54, the climbing speed 86 of electric current is much smaller than the speed of the electric current of second conduction path 44 that commutates from the first conduction path 42, and this is provided by speed 88a, the 88b of the change of the electric current in the first conduction path 42 and the second conduction path 44.
Then IGBT 66 is disconnected 80e, to commutate in the 3rd conduction path 46 by the electric current 78b in inflow second conduction path 44, as shown in fig 4e.This causes electric current 78c flow into the 3rd conduction path 46 and then flow in capacitor 70, and this charges with speed given below:
Wherein, dV
c/ dt is the rate of change of the voltage at capacitor 70 two ends;
I
cfor flowing through the electric current 78c of the 3rd conduction path 46; And
C is the capacitance of capacitor 70.
Charge to capacitor 70 increase of the voltage 82 that result in capacitor 70 two ends, this voltage is applied in the two ends of vacuum interrupter 58 and IGBT 66, as shown in Figure 5.In order to protect vacuum interrupter 58; the voltage 82 that disconnected device 58 two ends apply in a vacuum is held the proof voltage ability lower than vacuum interrupter 58; its along with vacuum interrupter 58 contact element between the interval in gap constantly increase and be increased to its rated value, until reach final contact interval distance.This is realized by the capacitance value arranging capacitor 70 can lower than the climbing speed of the proof voltage ability of vacuum interrupter 58 with the climbing speed of the voltage at control capacitor 70 two ends.The typical time period risen with the proof voltage ability obtaining final proof voltage value for carrying out interval to the contact element in vacuum interrupter 58 is 1 millisecond to 2 milliseconds.
The voltage 82 at capacitor 70 two ends produces back electromotive force, and the fault current of DC network 54, AC circuit breaker 56 and the first breaker apparatus is flow through in the resistance of this back electromotive force.And if when the safety restriction that condenser voltage reaches vacuum interrupter 58 and IGBT 66 is to shift any extra charging current 78d by the 4th conduction path 48, metal oxide varistor 74 is activated 80f, as shown in fig. 4f.Therefore, metal oxide varistor 74 absorbs and dissipates from the energy of DC network 54, and back electromotive force is being set up, with control DC mesh current.
Back electromotive force finally becomes significantly large at all serial module structure 40 two ends, with absorb inductive energy from DC network and within the rational time by current drives to zero.After electric current arrives zero 80g, open the AC circuit breaker 56 be connected in series, to complete current interruption process and isolated fault in DC network 54.
If in the near future need again to close the first breaker apparatus completing current interruptions program, then closed AC circuit breaker 56, is then then connect the IGBT 66 in all serial module structures 40, flows through the second conduction path 44 to allow electric current.But, if fault is still present in DC network 54, then promptly can disconnect the IGBT 66 in all serial module structures 40, flow through the first breaker apparatus to suspend electric current.On the other hand, if removed the fault in DC network 54, before disconnecting all IGBT 66, then by the vacuum interrupter 58 in closed all serial module structures 40, first breaker apparatus is returned to the normal manipulation mode of this first breaker apparatus subsequently, to recover the normal running of DC network 54.
When remove fault but capacitor 70 is still charged to the level substantially on its steady-state voltage levels, closed AC circuit breaker 56 is then in all serial module structures 40, connect IGBT 66 flow through the second conduction path 44 to allow electric current.Simultaneously in all modules 40, metal oxide varistor 74 makes capacitor 70 discharge into its steady-state voltage levels.The voltage vacuum interrupter 58 damaged in serial module structure 40 this minimizing capacitor 70 stands the risk of the ability of current interruption process subsequently.After capacitor 70 has returned to its steady-state voltage levels, the vacuum interrupter 58 before connecting IGBT 66 in closed all modules 40 is to have recovered the normal running of DC network 54.
In order to operate the first breaker apparatus under current limit mode, some serial module structures 40 are operating as and make the capacitor 70 of serial module structure 40 produce back electromotive force, flow through the part of the electric current of DC network 54 with antagonism, and thus drive current to the further rising of lower nonzero value or prevention electric current.Remaining module 40 is operating as and makes the IGBT 66 of these modules keep connecting simultaneously, to allow electric current to flow through the second corresponding conduction path 44 between first terminal 50 and the second terminal 52, and so the capacitor 70 of these modules does not contribute any back electromotive force to carry out drive current to lower nonzero value.
The modular arrangement of the first breaker apparatus allows the duty factor of module more to make full use of the availability factor of the first breaker apparatus.This also allows the back electromotive force generated can change to required voltage smoothly from no-voltage.
Alternatively, before being switched to current interruptions pattern, can at initial operation under current-limit mode first breaker apparatus.This may need the first breaker apparatus to be useful from the situation of temporary takeover current interruptions responsibility another circuit breaker unsuccessfully performing current interruption process wherein.
Therefore, the first breaker apparatus can interrupt and/or limit the electric current in DC network 54.
Vacuum interrupter 58 in first breaker apparatus and IGBT's 66 and the advantage connected be: this minimize the conduction loss during the normal running of DC network 54, and in the event of the high fault current of DC network 54, enable electric current commutate rapidly from the first conduction path 42 second pass to path 44.The latter not only increases the response time of the first breaker apparatus, and minimizes the wearing and tearing of contact element, and because this increasing the life-span of vacuum interrupter 58.
Fig. 6 shows the module 140 of a part for formation breaker apparatus according to a second embodiment of the present invention.Second breaker apparatus comprises multiple serial module structure 140.Each module 140 of the second embodiment of the breaker apparatus in Fig. 6 is similar to each module 40 of the first embodiment of the breaker apparatus in Fig. 1 in structure and operating aspect, and similar feature shares identical reference number.
Each module 140 of the second breaker apparatus is different from each module 40 of the first breaker apparatus, because in each module 140 of the second breaker apparatus, the 4th conduction path 48 also comprises the auxiliary switch element 90 of connecting with linear resistor 91.
Such as, auxiliary switch element 90 can be such as solid-state switch (such as, thyristor or IGBT) or mechanical switch (such as, vacuum interrupter or high-voltage relay).
In other embodiments of the invention, should be envisioned for: linear resistor 91 can be replaced by multiple linear resistor, at least one other linear resistor, at least one nonlinear resistor (such as, metal oxide varistor) and every combination thereof.In the embodiment of use utilizing multiple resistor, also should be envisioned for: auxiliary switch element 90 can be configured to optionally by some in multiple resistor or all incisions with cut out circuit.
Thering is provided of auxiliary switch element 90 in each module 140 of the second breaker apparatus allows optionally cut by linear resistor 91 and cut out circuit, to be controlled by linear resistor 91 to absorb and the energy that dissipates.
Fig. 7 illustrates the module 240 of a part for formation breaker apparatus according to a third embodiment of the present invention.3rd breaker apparatus comprises multiple serial module structure 240.Each module 240 of the 3rd embodiment of the breaker apparatus in Fig. 7 is similar to each module 40 of the first embodiment of the breaker apparatus in Fig. 1 in structure and operating aspect, and similar feature shares identical reference number.
Each module 40 that each module 240 of the 3rd breaker apparatus is different from the first breaker apparatus is: in each module 240 of the 3rd breaker apparatus, the 3rd conduction path 46 eliminates the diode of buffer circuit.This is of value to the size of minimizing the 3rd breaker apparatus 240, weight and cost.
But, from buffer circuit, omit diode mean before connection IGBT 66 and/or capacitor 70 must be made to be completely discharged to zero volt before closed vacuum interrupter 58.Otherwise the big current of pull-out may damage IGBT 66 and/or vacuum interrupter 70 from capacitor 70.This means that capacitor 70 can not reliably as the power supply energy source for the vacuum interrupter 58 in each module 240, IGBT 66 or thyristor 76 when opening the 3rd breaker apparatus 240 then.
Fig. 8 illustrates the module 340 of a part for formation breaker apparatus according to a fourth embodiment of the present invention.4th breaker apparatus comprises multiple serial module structure 340.Each module 340 of the 4th embodiment of the breaker apparatus in Fig. 8 is similar to each module 40 of the first embodiment of the breaker apparatus in Fig. 1 in structure and operating aspect, and similar feature shares identical reference number.
Each module 340 of the 4th breaker apparatus is different from each module 40 of the first breaker apparatus, is: in each module 340 of the 4th breaker apparatus:
Second conduction path 44 comprises two IGBT 66 of back-to-back connection;
Buffer circuit comprises capacitor 70 and two diodes 72, each IGBT 66 connects to corresponding in the diode of buffer circuit, with the set of current limit control element 92a, 92b, 92a, 92b are in parallel with capacitor 70 in full-bridge arrangement mode in this current controling element set.
Block configuration by this way causes breaker apparatus 340 to have bidirectional current interruption and/or current limit capability.
Fig. 9 illustrates breaker apparatus 110 according to a fifth embodiment of the present invention.5th breaker apparatus 110 comprises multiple serial module structure (not shown).Each module of the 5th breaker apparatus 110 is similar to each module 40 of the first embodiment of the breaker apparatus in Fig. 1 in structure and operating aspect.
Each module of the 5th breaker apparatus 110 is different from each module 40 of the first breaker apparatus 40, be: in the 5th interrupter equipment 110, this module also comprises power supply, for driving breaking coil, IGBT, the thyristor of vacuum interrupter, and alternatively for the Partial controll that is associated with the 5th breaker apparatus 110 and monitoring facility are powered.Power supply is the form that load current flows through its receiving transformer (not shown).
Fig. 9 illustrates the circuit making two DC network 94a, 94b interconnection in schematic form.This circuit comprises a pair secondary inductor 96 (each secondary inductor 96 is connected with a pole of corresponding DC network 94a, 94b) and a pair auxiliary capacitor 98 (each auxiliary capacitor 98 limits the branch in parallel with each DC network 94a, 94b).5th breaker apparatus 110 is connected to first terminal or second end of each serial module structure at the often end place of the 5th breaker apparatus between secondary inductor 96, and be connected between parallel branch, the 5th breaker apparatus 110 and parallel branch to be defined as " π " structure.
Circuit also comprises a pair driving transformer 110, in the respective end of the 5th breaker apparatus 110 of each driving transformer 110 between parallel branch.
In other embodiments of the invention, should be envisioned for: each driving transformer can change into connects to corresponding in capacitor 98, thus each branch comprises the series connection of auxiliary capacitor and driving transformer.In such an embodiment, two driving transformers can be positioned on the ground side electromotive force of circuit, to avoid the demand of installation high-voltage insulation on driving transformer, and reduce the manufacturing cost of driving transformer thus.
In use, closed vacuum interrupter, and control driving transformer 100, with ripple current is injected into flow through the 5th closed breaker apparatus 110 load current in.Each module (not shown) uses the receiving transformer of connecting with first terminal and the second terminal to receive ripple current.Ripple current by with post-equalization, to produce the locally supplied power source for modular assembly such as IGBT and mechanical switching element.
A pair secondary inductor 96 and a pair auxiliary capacitor 98 define two line traps (line trap) providing current loop return path 102.Line trap in circuit comprise the other parts that ripple current that prevention injects enters DC network 94a, 94b.Line trap shown in Fig. 9 uses firstorder filter network and can have more high-grade filting, and it uses multiple inductive, capacitive and ohmic element to replace a pair secondary inductor 96 shown in Fig. 9 and a pair auxiliary capacitor 98.
When the electric current flowing through the 5th breaker apparatus 110 is driven to zero, then ripple current can not be injected in the 5th breaker apparatus 110 by this drive current transformer 100, to provide locally supplied power source.Therefore, once power supply has discharged the energy that it stores, any electric power for closed vacuum interrupter may not just have been there is.Therefore, may need to generate electric power for closed vacuum interrupter by other method.
A method can be rushed for postponing in the capacitor of circuit and be gathered in the crops electric power to generate the electric power for closed vacuum interrupter.But during the 5th breaker apparatus 110 operates, capacitor may be discharged into zero volt, and without undergoing the closed vacuum interrupter simultaneously of charging subsequently.
Another kind method can, for closing vacuum interrupter with inflating, with completing circuit, and allow to use driving transformer 100 to modules with power thus.Which eliminate the demand generated for the electric power of closed vacuum interrupter, therefore cause the saving of the whole cost of equipment, size and quality aspect.
Will understand is that: above-mentioned two kinds of methods can combinationally use to reach the object of closed vacuum interrupter.
In other embodiments of the invention, should be envisioned for: power supply can be:
The power supply of optical drive, it can comprise electric insulation optical fiber and laser diode, to provide optical energy to module, and comprises photelectric receiver, with switchable optical energy and thus generating electric energy.
Be positioned at the turbogenerator within module, it by ionizing water, compressed air or can be powered by other the suitable medium any provided from the electric insulation pipeline of ground level.The dried up liquid stream of series electrical or compressed air can be come to safeguard a large amount of pipelines used by module.This module can also comprise: alternating current generator or DC generator, and it is powered by worm gear generator and therefore then provides power supply to module.
Be positioned at the fuel cell within module or flow battery.By the isolated pipe from ground level, fuel or cell liquor pump are delivered to fuel cell or flow battery.Electrochemical reaction uses fuel cell or flow battery to generate the electric power used by the module from fuel or electrolyte; Or
Be positioned at the thermoelectric generator within module, it comprises one or more Peltier (Peltier) effect thermal power unit, as shown in Figure 10.Paltie effect thermal power unit comprises thermocouple, and it can for being still not limited to the bismuth telluride be clipped between two ceramic tile heat transfer surface enriches semiconductor structure.Can be used but not limited to air cooling heat radiator to keep a heat transfer surface is near ambient temperature, hot water circuit can be made for heating another heat transfer surface together with the pipeline fallen behind with the electric insulation from ground level simultaneously.Other method for creating identical temperature difference can also be utilized.Current can be arranged between the modules with series connection or parallel construction.This causes the temperature difference of tens degrees Celsius between two ceramic tile heat transfer surface of paltie effect thermal power unit, and this causes heat trnasfer by thermocouple material and generates electron ion electric charge thus.This is transformed into available mains voltage by giving DC to the DC switch mode converters of module for power supply.
Use for the electric excitation of open and close vacuum repeater has the power requirement within tens watts of scopes usually.The power requirement of power supply can be reduced to several watt by spring loaded for the locking of vacuum interrupter mechanism to make position by using hydraulic pressure or air-operated drive.Excitation for hydraulic pressure or air-operated drive can be but be not limited to compressed air or deionized water, and can use electric insulation pipeline to provide.Once spring loaded to make position, just can unclamp to open vacuum interrupter by using electronic excitation device such as magnetic plug.
In other embodiments of the invention, should also be envisioned for: breaker apparatus can comprise the combination with reference to any feature described by above-described embodiment.
Claims (14)
1. be used in the breaker apparatus in high voltage direct current (HVDC) transmission of electricity, described breaker apparatus comprises a module (40) or multiple serial module structure (40);
Described module (40) or each module (40) comprising: the first conduction path (42), the second conduction path (44), the 3rd conduction path (46) and the 4th conduction path (48); And be connected to electric network (54,56) first terminal (50) and the second terminal (52), each conduction path (42,44,46,48) extend between described first terminal (50) and described second terminal (52); Described first conduction path (42) comprises mechanical switching element (58), flows through described first conduction path (42) optionally to allow electric current in the first mode of operation or to be commutated to described second conduction path (44) from described first conduction path (42) by electric current in the second mode of operation between described first terminal and described second terminal;
Described second conduction path (44) comprises at least one thyristor (66), between described first terminal (50) and described second terminal (52), flow through described second conduction path (44) optionally to allow electric current in the second mode of operation or electric current to be commutated to described 3rd conduction path (46) from described second conduction path (44), wherein, the arc voltage of described mechanical switching element (58) exceedes the on-state voltage at described thyristor (66) or described multiple thyristor two ends,
Described 3rd conduction path (46) comprises the buffer circuit with energy storing device (70), with the electric current of the rate of change and resistance flowing between described first terminal (50) and described second terminal (52) that control the voltage at described mechanical switching element (58) two ends in the second mode of operation;
Described 4th conduction path (48) comprises resistive element (74), to absorb in the second mode of operation and the energy that dissipates, and the charging current shifted from described first terminal (50) and described second terminal (52) and away from described energy storing device (70), to limit the maximum voltage at described first terminal and described second terminal two ends.
2. breaker apparatus according to claim 1, comprise multiple serial module structure (40), wherein, in use, described thyristor or each thyristor of one or more module switch, in the second mode of operation electric current to be commutated to the 3rd conduction path (46) from described second conduction path (44), described thyristor or each thyristor of other module or other module each simultaneously switch, between described first terminal (50) and described second terminal (52), described second conduction path (44) is flow through to allow electric current.
3. the breaker apparatus according to any aforementioned claim, wherein, described thyristor or each thyristor optionally allow electric current to flow through the second conduction path (44) in the first mode of operation between described first terminal (50) and described second terminal (52).
4. the breaker apparatus according to any aforementioned claim, wherein, described mechanical switching element (58) comprise be positioned within dielectric can indentation engagement contact element.
5. the breaker apparatus according to any aforementioned claim, wherein, described thyristor (66) or each thyristor (66) are or comprise insulated gate bipolar transistor, grid disconnection thyristor, grid rectification change transistor, integrated form grid rectification change transistor or the controlled thyristor of MOS.
6. the breaker apparatus according to any aforementioned claim, wherein, described resistive element (74) comprises at least one linear resistor and/or at least one nonlinear resistor.
7. the breaker apparatus according to any aforementioned claim, wherein, described 4th conduction path (48) also comprises the auxiliary switch element being connected to described resistive element, and described auxiliary switch element is operable as amendment and flows through the electric current of described resistive element or the voltage drop at described resistive element two ends.
8. the breaker apparatus according to any aforementioned claim, wherein, the first conduction path (42), the second conduction path (44) and the 3rd conduction path (46) are in parallel between described first terminal and described second terminal.
9. the breaker apparatus according to any aforementioned claim, wherein, described energy storing device (70) and the parallel connection of described resistive element, and described buffer circuit also comprises the diode being connected to described energy storing device.
10. the breaker apparatus according to any aforementioned claim, comprises multiple serial module structure, and wherein, one or more module is reversely connected to one or more other module.
11. breaker apparatus according to any one of claim 1 to 7, wherein,
Described second conduction path (44) comprises two thyristors; And
Described buffer circuit comprises energy storing device and two diodes, each thyristor and the corresponding Diode series in the diode of described buffer circuit, with the set of current limit control element, described current controling element set is in parallel with described energy storing device in full-bridge arrangement mode.
12. breaker apparatus according to any aforementioned claim, wherein, described 4th conduction path (48) is in parallel with the described energy storing device (70) of described buffer circuit.
13. breaker apparatus according to any one of claim 1 to 11, wherein, described 4th conduction path (48) is in parallel with the first conduction path (42), the second conduction path (44) and/or the 3rd conduction path (46).
14. breaker apparatus according to any aforementioned claim, also comprise to the power supply of one or more assembly power supply of described breaker apparatus, wherein, described power supply be or comprise for receive and the transformer of rectification ripple current, optical drive power supply, the turbogenerator, fuel cell, flow battery or the thermoelectric generator that are coupled with alternating current generator or DC generator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2012/053574 WO2013127463A1 (en) | 2012-03-01 | 2012-03-01 | High voltage dc circuit breaker apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104247262A true CN104247262A (en) | 2014-12-24 |
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ID=45787208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280070999.6A Pending CN104247262A (en) | 2012-03-01 | 2012-03-01 | High voltage dc circuit breaker apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20150116881A1 (en) |
| EP (1) | EP2820756A1 (en) |
| CN (1) | CN104247262A (en) |
| WO (1) | WO2013127463A1 (en) |
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- 2012-03-01 CN CN201280070999.6A patent/CN104247262A/en active Pending
- 2012-03-01 US US14/379,746 patent/US20150116881A1/en not_active Abandoned
- 2012-03-01 WO PCT/EP2012/053574 patent/WO2013127463A1/en active Application Filing
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| US4658227A (en) * | 1986-03-14 | 1987-04-14 | General Electric Company | High speed magnetic contact driver |
| US5339210A (en) * | 1992-07-22 | 1994-08-16 | General Electric Company | DC circuit interrupter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107241919A (en) * | 2014-12-23 | 2017-10-10 | 赛峰电气与电源公司 | Control device for supply line |
| CN107241919B (en) * | 2014-12-23 | 2021-01-22 | 赛峰电气与电源公司 | Control device for power supply line |
| CN108365236A (en) * | 2018-01-05 | 2018-08-03 | 全球能源互联网研究院有限公司 | A kind of power supply device applied under high voltage DC breaker |
| CN108365236B (en) * | 2018-01-05 | 2020-07-28 | 全球能源互联网研究院有限公司 | Energy supply device applied to high-voltage direct-current circuit breaker |
| CN113196074A (en) * | 2018-11-13 | 2021-07-30 | 伊利诺伊理工学院 | Hybrid circuit breaker using transient commutation current injection circuit |
| CN109962444A (en) * | 2019-05-06 | 2019-07-02 | 常熟开关制造有限公司(原常熟开关厂） | A kind of dc circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| US20150116881A1 (en) | 2015-04-30 |
| EP2820756A1 (en) | 2015-01-07 |
| WO2013127463A1 (en) | 2013-09-06 |
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Application publication date: 20141224 |